The One Bag Traveler recommends Gear, Destinations and Adventures. Patagonia’s PrimaLoft Nano Puff Hoody packs a ton of warmth into a lightweight package. Patagonia PrimaLoft Nano Puff Hoody Review: Price and Where to Buy: The Nano Puff Hoody is available on Amazon and Patagonia’s website from $174 (sale price on select styles, full price is $249).